Wear precious jewelry safely
Most brooches have a built-in fuse on the needle. Nevertheless, one is afraid to lose them: This is now over!
For safety, brooches can also be sewed with an invisible thread (or a thread in color of clothing) with just a few stitches in the right place. So the brooch stays where it should be. The thread is solved quickly later.
Brooches can also be worn on the chain as a pendant, to pull the chain through the needle and also knot with an invisible thread.